https://en.wikipedia.org/wiki/Adirondack_High_Peaks
Name. The Adirondack High Peaks is the name given to 46 mountain peaks in the Adirondack Mountains that were originally believed to comprise all of the Adirondack peaks higher than 4,000 feet (1,219 m). However, later surveying showed that four of the peaks in the group are actually under this elevation, and one additional peak that is close to this elevation had been overlooked.